Unspecified vulnerability in the decode_slice_header function in libavcodec/h264.c in FFmpeg before 0.11 has unknown impact and attack vectors, related to a "rejected resolution change."
http://www.securityfocus.com/bid/55355
http://www.openwall.com/lists/oss-security/2012/09/02/4
http://www.openwall.com/lists/oss-security/2012/08/31/3
http://secunia.com/advisories/50468
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=9a57a37b7041581c10629c8241260a5d7bfbc1e7